Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Effects of Air Pollution on the Risk of Low Birth Weight in a Cold Climate

Version 1 : Received: 27 July 2020 / Approved: 28 July 2020 / Online: 28 July 2020 (10:43:42 CEST)

A peer-reviewed article of this Preprint also exists.

Balogun, H.A.; Rantala, A.K.; Antikainen, H.; Siddika, N.; Amegah, A.K.; Ryti, N.R.I.; Kukkonen, J.; Sofiev, M.; Jaakkola, M.S.; Jaakkola, J.J.K. Effects of Air Pollution on the Risk of Low Birth Weight in a Cold Climate. Appl. Sci. 2020, 10, 6399. Balogun, H.A.; Rantala, A.K.; Antikainen, H.; Siddika, N.; Amegah, A.K.; Ryti, N.R.I.; Kukkonen, J.; Sofiev, M.; Jaakkola, M.S.; Jaakkola, J.J.K. Effects of Air Pollution on the Risk of Low Birth Weight in a Cold Climate. Appl. Sci. 2020, 10, 6399.

Journal reference: Appl. Sci. 2020, 10, 6399
DOI: 10.3390/app10186399

Abstract

There is accumulating evidence that prenatal exposure to air pollution disturbs fetal growth and development, but little is known about these effects in cold climates or their season-specific or joint effects. Our objective was to assess independent and joint effects of prenatal exposure to specific air pollutants on the risk of low birth weight (LBW). We utilized the 2568 children of the Espoo Cohort Study, born between 1984 and 1990, and living in the City of Espoo. We conducted stratified analyses for births during warm and cold seasons separately. We analyzed the effect estimates using multi-pollutant Poisson regression models with risk ratio (RR) as the measure of effect. The risk of LBW was related to exposure to CO and (adjusted RR 1.44, 95% CI: 1.04-2.00) and exposure to O3 in the spring-summer season (1.82, 1.11-2.96). There was also evidence of synergistic effects between CO and O3 (relative risk due to interaction, RERI, all year 1.08, 95% CI: 0.27-4.94, spring-summer 3.97, 2.17-25.85) and PM2.5 and O3 (all year 0.72, -0.07-3.60, spring-summer 2.80, 1.36-19.88). We present new evidence of both independent and joint effects of prenatal exposure in a cold climate on the risk of LBW at low levels of air pollution.

Subject Areas

Air pollution; low birth weight; prenatal exposure; joint effects; cold climate

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